- For information dealing with this year in the timeline of the fictional Star Trek universe, see 1975.
Production
- Nothing.
Other events
- 5 March
- Jolene Blalock born.
- 16 June
- Leslie Engelberg born.
- 30 July
- James Blish dies.
Merchandising
Novels
- January - Publication of "Star Trek Log 3" by Alan Dean Foster (Ballantine Books)
- March - Publication of "Star Trek Log 4" by Alan Dean Foster (Ballantine Books)
- April - Publication of "Star Trek 11" by James Blish (Bantam Books)
- August - Publication of "Star Trek Log 5" by Alan Dean Foster (Ballantine Books)
Comics
- January - Publication of "The Mimicking Menace" (#28) (Gold Key Comics)
- March - Publication of "The Planet of No Return" (#29) by Nevio Zaccara (Gold Key Comics) (Reprint of Issue #01)
- May - Publication of "Death of a Star" (#30) by Alberto Giolitti (Gold Key Comics)
- July - Publication of "The Final Truth" (#31) by Alberto Giolitti (Gold Key Comics)
- August - Publication of "The Animal People" (#32) by Alberto Giolitti (Gold Key Comics)
- September - Publication of "The Choice" (#33) by Alberto Giolitti (Gold Key Comics)
- October - Publication of "The PsychoCrystals" (#34) by Alberto Giolitti (Gold Key Comics)
- November - Publication of "The Peril of Planet Quick Change" (#35) by Alberto Giolitti (Gold Key Comics) (Reprint of Issue #04)
Other publications
- November - Publication of "Star Fleet Technical Manual" by Franz Joseph (Ballantine Books) (Reference book)
- December - Publication of "I Am Not Spock" by Leonard Nimoy (Celestial Arts)
- Publication of "Star Trek Blueprints" by Franz Joseph (Ballantine Books) (Reference book)
- Publication of "Star Trek Lives!" by Jacqueline Lichtenberg, Sondra Marshak & Joan Winston (Bantam Books)
- Publication of "Passage to Moauv" (#PR-25) by Alan Dean Foster (Power Records) (Book & Record Set)
- Publication of "The Crier in Emptiness" (#PR-26) by Alan Dean Foster (Power Records) (Book & Record Set)
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